Rockville ROCKBOX 6.5" 100 Watt Multi-Purpose Portable Powered Bluetooth Speaker w/USB/SD/Radio. Rechargeable 6000mAH lithium battery lasts 24 hours. 100 Watts Peak Power / 50 Watts Program Power / 25 Watts RMS Power. Built in Bluetooth to stream your music wirelessly (65 foot range!). Built in USB music playback. Built in SD card playback (supports up to 32 GB).

★ Larger LCD Display: 1.7'' large display screen provides more information: song name, incoming call number, FM frequency, voltage of car battery, volume. The neck of bluetooth FM transmitter is made of plastic flex tub that allows you to bend and adjust the position of the unit in any direction. ★ Features Bluetooth V4.2 & EDR: Compared to earlier versions like Bluetooth V3.0 or V4.0, the latest bluetooth V4.2 ensures instant pairing and provides exclusive long life with a lower power consumption. Compatible with all bluetooth enabled devices, such as smartphone and tablet. EDR (Enhanced Data Rate) helps to ensure a faster data transmission rate and maintains a strong seamless connection without delay and current noise/buzz. ★ Hands-free Calling & & Crystal Clear Sound: Built-in quality microphone with Noise Suppression CVC Technology to create full duplex crystal sound quality. Automatically switch to hands-free mode from music playing when receiving a call. Seamlessly connects and switches between incoming calls and music. Just click a button to answer / redial / end a call.